with christmas shoppers. this is the type of gun police say he used. an ar-15 semiautomatic rifle. america with more gun stores than grocery stores. tonight, eyewitnesses tell me what they saw when they started. i talk a gun advocate who says there should have been more guns in that mall. and the mother of the aurora, colorado, victims, who thinks the opposite. and talks about guns, north korea's nuclear threat. and the man at both sides of the gun debate, mark kelly. >> president obama hasn't really addressed the gun issue at all. >> this is piers morgan tonight. good evening. our big story tonight, america armed. a day after another gun outrage, a young 22-year-old shoots up a mall of christmas shoppers in oregon. here's the statistics. there's more than 129,000 federally licensed firearms dealers in this country. that's according to the bureau of alcohol and tobacco. there's 16,000 grocery stores and 14,000 mcdonald's restaurants. far more places to buy guns in america than groceries or burgers. 47,856 people murdered by firearms between 2006 and 2010. two more murdered in clackamas cen